9.
在直角坐标系\(xOy\)中,曲线\(C_{1}\)的参数方程为\(\begin{cases} & x=2+2\cos \varphi , \\ & y=2\sin \varphi \\ \end{cases}(φ\)为参数\().\)以原点\(O\)为极点,\(x\)轴正半轴为极轴建立极坐标系,曲线\(C_{2}\)的极坐标方程为\(ρ=4\sin θ\)
\((\)Ⅰ\()\)求曲线\(C_{1}\)的普通方程和\(C_{2}\)的直角坐标方程;
\((\)Ⅱ\()\)已知曲线\(C\)\(3\)的极坐标方程为\(θ=α(0 < α < π,ρ∈R)\),点\(A\)是曲线\(C_{3}\)与\(C_{1}\)的交点,点\(B\)是曲线\(C_{3}\)与\(C_{2}\)的交点,且\(A\),\(B\)均异于原点\(O\),且\(|AB|=4\sqrt{2}\),求实数\(α\)的值。